p-props
v6.0.0
Published
Like `Promise.all()` but for `Map` and `Object`
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p-props
Like
Promise.all()
but forMap
andObject
Useful when you need to run multiple promises concurrently and keep track of the fulfilled values by name.
Install
npm install p-props
Usage
import pProps from 'p-props';
import got from 'got';
const fetch = async url => {
const {body} = await got(url);
return body;
};
const sites = {
ava: fetch('https://avajs.dev'),
todomvc: fetch('https://todomvc.com'),
github: fetch('https://github.com'),
foo: 'bar'
};
console.log(await pProps(sites));
/*
{
ava: '<!doctype …',
todomvc: '<!doctype …',
github: '<!doctype …',
foo: 'bar'
}
*/
API
pProps(map, mapper?, options?)
Returns a Promise
that is fulfilled when all promises in map
and ones returned from mapper
are fulfilled, or rejects if any of the promises reject. The fulfilled value is the same as map
, but with a fulfilled version of each entry value, or the fulfilled value returned from mapper
, if defined.
map
Type: Map | object
Resolves entry values that are promises. Other values are passed through.
mapper(value, key)
Type: Function
Receives the current value and key as parameters. If a value is a Promise
, mapper
will receive the value this Promise
resolves to. Expected to return a Promise
or value.
options
Type: object
See the p-map
options.